<template>
    <div>
      <!--面包屑导航各区域-->
      <el-breadcrumb separator="/">
        <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item>用户管理</el-breadcrumb-item>
        <el-breadcrumb-item>用户列表</el-breadcrumb-item>
      </el-breadcrumb>
      <!--卡片视图区域-->
      <el-card class="box-card">
        <!--搜索与添加区域-->
        <el-row :gutter="20">
          <el-col :span="10">
            <el-input placeholder="请输入内容" clearable v-model="queryInfo.query" @clear="getUserList">
              <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
            </el-input>
          </el-col>
          <el-col :span="4">
            <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
          </el-col>
        </el-row>
        <!--用户列表区域-->
        <el-table :data="userlist" border stripe>
          <el-table-column type="index"></el-table-column>
          <el-table-column label="姓名" prop="username"></el-table-column>
          <el-table-column label="邮箱" prop="email"></el-table-column>
          <el-table-column label="电话" prop="mobile"></el-table-column>
          <el-table-column label="角色" prop="role_name"></el-table-column>
          <el-table-column label="状态">
            <template slot-scope="scope">
              <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)">
              </el-switch>
            </template>
          </el-table-column>
          <el-table-column label="操作" width="180px">
            <template slot-scope="scope">
              <!--修改按钮-->
              <el-tooltip class="item" effect="dark" content="修改" placement="top" :enterable="false">
                <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
              </el-tooltip>
              <!--删除按钮-->
              <el-tooltip class="item" effect="dark" content="删除" placement="top" :enterable="false">
                <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
              </el-tooltip>
              <!--分配角色按钮-->
              <el-tooltip class="item" effect="dark" content="分配角色" placement="top" :enterable="false">
                <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
              </el-tooltip>
            </template>
          </el-table-column>
        </el-table>
        <!--分页区域-->
        <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange"
          :current-page="queryInfo.pagenum" :page-sizes="[1, 2, 5, 10]" :page-size="queryInfo.pagesize"
          layout="total, sizes, prev, pager, next, jumper" :total="total">
        </el-pagination>
      </el-card>
      <!--添加用户的对话框-->
      <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
        <!--内容主体区-->
        <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
          <el-form-item label="用户名" prop="username">
            <el-input v-model="addForm.username"></el-input>
          </el-form-item>
          <el-form-item label="密码" prop="password">
            <el-input v-model="addForm.password" type="password"></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="addForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机" prop="mobile">
            <el-input v-model="addForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <!--底部区域-->
        <span slot="footer" class="dialog-footer">
    <el-button @click="addDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="addUser" >确 定</el-button>
  </span>
      </el-dialog>
      <!--修改用户的对话框-->
      <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">

        <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
          <el-form-item label="用户名">
            <el-input v-model="editForm.username" disabled></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="editForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机" prop="mobile">
            <el-input v-model="editForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
  </span>
      </el-dialog>
      <!--分配角色对话框-->
      <el-dialog title="分配角色" :visible.sync="setRoleDialogVisible" width="50%" @close="setRoleDialogClosed">
        <div>
          <p>当前的用户：{{userInfo.username}}</p>
          <p>当前的角色:{{userInfo.role_name}}</p>
          <p>分配新角色：
            <el-select v-model="selectedRoleId" placeholder="请选择">
              <el-option v-for="item in rolesList" :key="item.id" :label="item.roleName" :value="item.id"></el-option>
            </el-select>
          </p>
        </div>
        <span slot="footer" class="dialog-footer">
    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
  </span>
      </el-dialog>
    </div>

</template>

<script>
export default {
  name: 'user',
  data() {
    var checkEmail = (rule, value, callback) => {
      // 验证邮箱的正则表达式
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/;
      if (regEmail.test(value)) {
        // 合法邮箱
        return callback()
      }
      callback(new Error('请输入合法的邮箱'))
    };
    var checkMobile = (rule, value, callback) => {
      const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
      // 验证手机的正则表达式
      if (regMobile.test(value)) {
        return callback()
      }
      callback(new Error('请输入合法的手机号'))
    }
    return {
    // 获取用户列表对象的数据
      queryInfo: {
        query: '',
        // 当前页数
        pagenum: 1,
        // 当前每页显示多少条数据
        pagesize: 2
      },
      userlist: [],
      total: 0,
      // 控制对话框显示隐藏
      addDialogVisible: false,
      // 控制修改用户的显示隐藏
      editDialogVisible: false,
      // 添加用户表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 添加表单的验证规则对象
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '用户名长度在3～10个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 15, message: '用户名长度在6～15个字符', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur'}
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur'}
        ]
      },
      // 查询用信息的对象
      editForm: {},
      editFormRules: {
        email: [
          { required: true, message: '请输入用户邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur'}
        ],
        mobile: [
          { required: true, message: '请输入用户手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur'}
        ]
      },
    //  控制分配角色对话框的显示隐藏
      setRoleDialogVisible: false,
      // 需要被分配角色的用户信息
      userInfo: {},
    //  所有角色的数据
      rolesList: [],
      // 已选中的角色Id
      selectedRoleId: ''
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    async getUserList() {
      const {data: res} = await this.$http.get('users', {
        params: this.queryInfo
      })
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户失败')
      }
      this.userlist = res.data.users
      this.total = res.data.total
    },
    // 监听pageSize改变事件
    handleSizeChange(newSize) {
      // console.log(newSize)
      this.queryInfo.pagesize = newSize;
      this.getUserList()
    },
    // 页码值改变的事件
    handleCurrentChange(newPage) {
      // console.log(newPage)
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听swich开关状态的改变
    async userStateChanged(userinfo) {
      const { data: res } = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
      console.log(res)
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state;
        return this.$message.error('更新用户状态失败')
      }
      this.$message.success(res.meta.msg)
    },
    // 监听添加用户对话事件
    addDialogClosed() {
      // 重置表单val值
      this.$refs.addFormRef.resetFields()
    },
    // 点击按钮，添加新用户
    addUser() {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return
      //  可以发起添加用户请求
        const {data: res} = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) this.$message.error('添加用户失败！')
        this.$message.success('添加用户成功！')
        // 隐藏添加用户的对话框
        this.addDialogVisible = false
      //  重新获取列表数据
        this.getUserList()
      })
    },
  //  展示用户编辑的对话框
    async showEditDialog(id) {
      const {data: res} = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) return this.$message.error('查询用户信息失败!');
      this.editForm = res.data
      this.editDialogVisible = true;
    },
    // 监听修改用户对话框的关闭事件
    editDialogClosed() {
      // 重置表单val值
      this.$refs.editFormRef.resetFields()
    },
  //  修改用户信息并提交
    editUserInfo() {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return
      //   发起用户信息的数据请求
        console.log(this.editForm.username)
        const {data: res} = await this.$http.put('users/' + this.editForm.id, {
          username: this.editForm.username,
          email: this.editForm.email,
          mobile: this.editForm.mobile
        })
        if (res.meta.status !== 200) return this.$message.error('更新用户信息失败');
      //  关闭对话框
        this.editDialogVisible = false
      //  刷新数据列表
        this.getUserList()
      //  提示修改成功
        this.$message.success('修改成功');
      })
    },
    async removeUserById(id) {
    //  弹窗询问用户是否删除数据
      const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      // 如果用户确认删除，则返回值为字符串 confirm
      // 如果用户取消了删除，则返回值为字符串 cancel
      if (confirmResult !== 'confirm') return this.$message.info('已取消删除！');
      const {data: res} = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) return this.$message.error('删除用户失败！');
      this.$message.success('删除用户成功！');
      this.getUserList()
    },
  //  展示分配角色的对话框
    async setRole(userInfo) {
      this.userInfo = userInfo
      const {data: res} = await this.$http.get('roles')
      if (res.meta.status !== 200) return this.$message.error('获取角色列表失败')
      this.rolesList = res.data
      this.setRoleDialogVisible = true
    },
    //  点击按钮分配角色
    async saveRoleInfo() {
      if (!this.selectedRoleId) return this.$message.error('请选择要分配的角色！')
      const {data: res} = await this.$http.put(`users/${this.userInfo.id}/role`, {rid: this.selectedRoleId})
      if (res.meta.status !== 200) return this.$message.error('更新角色失败！');
      this.$message.success('更新角色成功！');
      this.getUserList()
      this.setRoleDialogVisible = false
    },
    // 监测对话框关闭事件
    setRoleDialogClosed() {
      this.selectedRoleId = ''
      this.userInfo = {}
    }
  }
}
</script>

<style lang="less" scoped>

</style>
